Before neural end-to-end chatbot systems started to become more prevalent, one of the most successful chatbots of the early systems based on trigger-response pairs is ALICE (Artificial Linguistic Internet Computer Entity) [1]}. By the time of ALICE's creation and usage, the evaluation of chatbots had evolved significantly, and one of ALICE's most notable achievements was to win the Loebner prize version of the Turing test in 2004. In this version of Turing's imitation game, there are both humans and bots which judges must interact with in a conversational way and then determine whether the actor on the other end is a bot or a human. Figure REF  presents an excerpt of one transcript from the Loebner prize [2]}.
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